It's been 15 years since movie fans first met Middle-earth's heroic companions in "The Lord of the Rings: The Fellowship of the Ring." To celebrate the big anniversary, five of the fellowship members got together for a reunion, complete with an epic cave battle reenactment.

On Monday, Dominic Monaghan, who played resourceful hobbit Merry Brandybuck, shared photos to his Instagram of the gathering. Monaghan snapped a picture with Viggo Mortensen, who brought the valiant Aragorn to life. Monaghan captioned the photo with a quote from the movie describing the heir to the kingdom of Gondor: "My captain. My king."

A third photo really got Monaghan's Instagram followers excited, collecting more than 50,000 likes. The four actors, along with Orlando Bloom, who played the vigilant elf Legolas, posed to recreate one of the film's pivotal scenes: A battle against orcs in the mines of Moria.

With eating utensils in hand, the five men made sure to prepare for the cave troll.

"The Fellowship of the Ring" premiered in December 2001, and the trilogy's last film, "The Return of the King," opened in 2003. Some of the actors reprised their roles in Peter Jackson's recent adaptations of J.R.R. Tolkien's "The Hobbit."